4.1 - 4.3 Liter MAHLE conversion kit 13.0:1 for 997 GT3 / GT3 RS / 991.1 GT3 Cup
- - forged pistons 106 mm
- - 22mm piston pin, check existing connecting rods or replace with our Carillo connecting rod
- - mirrored valve pockets
- - offset (left hanging, right standing)
- - compression approx. 13:1
- - Made in Germany – Made by MAHLE
- Water tanks and engine housings must be spindled.
If sports camshafts are used, the pockets on the intake side may need to be deepened.
We are happy to offer this service.
You can also send us the engine housing and both water tanks so that we can carry out this work.
Alternatively, there is a set of reinforced water tanks, which also need to be drilled out.
When installed in a 4.0L RS engine with 80.4
stroke crankshaft, the displacement is 4.3 liters
